{"product_id":"omron-k7l-at50-liquid-leakage-sensor-amplifier","title":"Omron K7L-AT50 Liquid Leakage Sensor Amplifier","description":"\u003cp\u003eThe \u003cstrong\u003eOmron K7L-AT50\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eK7L-AT50\u003c\/strong\u003e Liquid Leakage Sensor Amplifier, provides direct signal processing for liquid leakage detection circuits using dedicated sensing bands and resistance-based detection methods.\u003c\/p\u003e\n\u003ch3\u003eModel Identification\u003c\/h3\u003e\n\u003cp\u003eThe K7L-AT50 is a liquid leakage detection amplifier designed to interface with OMRON liquid sensing bands. It converts leakage resistance changes into transistor output signals for connection with PLC inputs, relay circuits, or monitoring systems. The unit supports adjustable detection resistance ranges through side DIP switch settings.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eK7L-AT50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eOmron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eLiquid Leakage Sensor Amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApprox. 14 g (shipping reference: 2 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e12.8 x 46 x 28.8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-10 to +55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmbient Humidity\u003c\/td\u003e\n\u003ctd\u003e45% to 85% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e1 W max.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Power Supply\u003c\/td\u003e\n\u003ctd\u003e12 to 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAllowable Voltage Range\u003c\/td\u003e\n\u003ctd\u003e10 to 30 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperate Resistance Range\u003c\/td\u003e\n\u003ctd\u003e0 to 50 MOhm adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetection Range Settings\u003c\/td\u003e\n\u003ctd\u003eRange 0: 0 to 250 kOhm; Range 1: 0 to 600 kOhm; Range 2: 0 to 5 kOhm; Range 3: 0 to 50 kOhm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelease Resistance\u003c\/td\u003e\n\u003ctd\u003e105% min. of operate resistance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eOpen-collector transistor output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Rating\u003c\/td\u003e\n\u003ctd\u003e30 VDC max., 100 mA max.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResponse Time\u003c\/td\u003e\n\u003ctd\u003eOperate: 800 ms max.; Release: 800 ms max.; Power ON: 2 s max.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd\u003e10 MOhm min. at 100 VDC between case and current-carrying parts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDielectric Strength\u003c\/td\u003e\n\u003ctd\u003e1,000 VAC at 50\/60 Hz for 1 min between case and current-carrying parts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring Distance\u003c\/td\u003e\n\u003ctd\u003eCable: 50 m max.; Sensing band: 10 m max.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSocket Terminals\u003c\/td\u003e\n\u003ctd\u003ePush-In Plus Terminal Block P2RF-08-PU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Control Integration Features\u003c\/h3\u003e\n\u003cp\u003eThe K7L-AT50 operates as a discrete sensing interface within Omron control systems. Its open-collector output configuration allows connection to standard PLC digital input channels without additional signal conversion.\u003c\/p\u003e\n\u003cp\u003eThe amplifier performs resistance measurement on connected sensing bands and switches output status when the detected liquid resistance reaches the configured threshold. The adjustable detection range supports different sensing conditions by DIP switch selection and top-panel adjustment.\u003c\/p\u003e\n\u003ch3\u003eOrdering Configuration\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Omron K7L-AT50 Liquid Leakage Sensor Amplifier\u003c\/li\u003e\n\u003cli\u003e1 x Terminal Block\u003c\/li\u003e\n\u003cli\u003e1 x Adjustment Screwdriver\u003c\/li\u003e\n\u003cli\u003e1 x Terminator\u003c\/li\u003e\n\u003cli\u003eCompatible sensing accessories must be ordered separately when required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInstall the amplifier in a location within the specified operating temperature and humidity range.\u003c\/li\u003e\n\u003cli\u003eUse insulated three-conductor cable for long-distance sensing connections.\u003c\/li\u003e\n\u003cli\u003eKeep sensing cable routing separated from high-voltage power lines to reduce electrical interference.\u003c\/li\u003e\n\u003cli\u003eConnect the sensing band according to OMRON wiring specifications.\u003c\/li\u003e\n\u003cli\u003eVerify DIP switch range selection before applying power.\u003c\/li\u003e\n\u003cli\u003eConfirm transistor output polarity settings before connecting external control equipment.\u003c\/li\u003e\n\u003cli\u003eReset the power supply after disconnection detection events to restore normal operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIndustrial Signal Processing Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe K7L-AT50 follows the Omron industrial control component design approach used for compact PLC-connected devices. The unit supports stable discrete signal acquisition by converting resistance variation into electrical switching output.\u003c\/p\u003e\n\u003cp\u003eThe device is configured for I\/O density scaling within automation panels where multiple sensor signals are monitored through PLC digital input architectures. Its compact design allows integration into DIN-rail or control cabinet assemblies using compatible terminal accessories.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eWhat type of sensor input does the K7L-AT50 support?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe unit accepts liquid leakage sensing bands and detects leakage through resistance changes in the connected sensing circuit.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eWhat is the power supply requirement for the K7L-AT50?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe amplifier requires 12 to 24 VDC operation with an allowable voltage range from 10 to 30 VDC.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eDoes the K7L-AT50 provide analog output signals?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNo. The unit provides open-collector transistor switching output for leakage detection and disconnection detection.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eWhat is the maximum sensing cable distance?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe maximum connecting cable length is 50 m when using specified insulated sensing cable conditions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eCan the detection resistance range be adjusted?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eYes. Detection ranges are selected using side DIP switches, and fine adjustment is available through the top adjuster.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eDoes the K7L-AT50 support disconnection detection?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe standard K7L-AT50 model supports liquid leakage detection. Disconnection detection depends on the specific model version.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eWhat is the output electrical rating?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe transistor output supports a maximum load of 30 VDC and 100 mA.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eHow is the unit restored after disconnection detection?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRecovery is performed by resetting the power supply according to the specified operating procedure.\u003c\/p\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":47306596581549,"sku":"K7L-AT50","price":202.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/K7L-AT50_1.jpg?v=1787613638","url":"https:\/\/www.maxwellplc.com\/ga\/products\/omron-k7l-at50-liquid-leakage-sensor-amplifier","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}